100G QSFP28 Transceivers

The main difference is bandwidth and physical size. QSFP28 supports 100G over four 25G lanes, while SFP28 supports 25G over a single lane. Physically, the QSFP28 module is wider to accommodate the four lanes. While SFP28 is suitable for server-to-switch connections, QSFP28 is used for higher-speed switch-to-switch uplinks and interconnects.

Yes, QSFP28 is specifically designed for 100G Ethernet. It achieves this by aggregating four independent lanes, each running at approximately 25 Gbps (up to 28 Gbps). This 4x25G configuration is the industry standard for delivering 100G connectivity in a compact, efficient form factor for modern networking equipment.

We offer a range of 100G QSFP28 solutions to meet various needs. This includes optical transceivers like SR4 for short-range (up to 100m) multimode fiber links and LR4 for long-range (up to 10km) single-mode fiber connections. We also provide cost-effective Direct Attach Copper (DAC) cables for short, in-rack connections.

Our transceivers, such as the Juniper JNP series, are tested for full compatibility with the specified manufacturer's hardware, including the QFX Series switches. Every unit undergoes a rigorous 5-step Quality Assurance process to ensure it meets or exceeds original performance standards, guaranteeing seamless integration into your existing network environment.

A transceiver (like SR4 or LR4) is an optical module that converts electrical signals to light for transmission over fiber optic cables, ideal for longer distances. A Direct Attach Copper (DAC) cable is a fixed-length copper cable with transceiver-like connectors on both ends. DACs are a lower-cost, lower-power solution for very short links, typically within a server rack.

Every transceiver undergoes our stringent 5-step Quality Assurance and Testing process. This includes a thorough physical inspection, diagnostics, and performance testing in real-world networking equipment to verify signal integrity, data rate, and compatibility. This ensures every unit we ship provides reliable, high-performance operation from day one.